Cell Transport Test

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Your own handwritten or typed notes

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Diffusion is the term for movement of molecules from

• an area of low concentration to an area of high concentration

• an area next to a concentration gradient

• an area of high concentration to an area of low concentration

• a selectively permeable membrane to a nucleus

What is the difference between diffusion and osmosis?

• Diffusion moves molecules from LOW to HIGH concentrations

• Osmosis is a type of diffusion which involves water molecules

• Osmosis move molecules from LOW to HIGH concentrations

• Diffusion requires energy while osmosis does not

Salt (the dots) is added to the left side of a beaker at the start of the experiment. The picture on the right shows the end of the experiment. The end of the experiment is a good example of

• Active Transport

• Equilibrium

• Osmosis

• Endocytosis

A student fills a beaker with a solution of 96% water and 4% salt. She then adds a solution of 88% and 12% salt into dialysis tubing (See image). WATER molecules will move

• from inside the tubing to the beaker

• from the beaker to inside the tubing

• they won't move due to equilibrium

• they won't move because water molecules are too big to pass through the tubing

A student fills a beaker with a solution of 96% water and 4% salt. She then adds a solution of 88% and 12% salt into dialysis tubing (See image). SALT molecules will move

• from inside the tubing to the beaker

• from the beaker to inside the tubing

• they won't move due to equilibrium

• they won't move because water molecules are too big to pass through the tubing

Tags

NGSS.MS-PS1-2

A student fills a beaker with a solution of 96% water and 4% salt. She then adds a solution of 88% and 12% salt into dialysis tubing (See image). At the end of the experiment, the dialysis tubing will

• turn purple

• weigh the same

• weigh less

• weigh more

Tags

NGSS.MS-PS1-2

The diagram to the right shows a portion of a cell membrane. What is arrow A pointing to?

• Protein

• Carbohydrate

• Phospholipid

• Chromosome

Tags

NGSS.MS-LS1-2

The diagram to the right shows a portion of a cell membrane. What is arrow B pointing to?

• Protein

• Carbohydrate

• Phospholipid

• Chromosome

Tags

NGSS.MS-LS1-2

Which of the following statements about active transport is true?

• A. Molecules always move from high to low concentration

• B. Molecules can move from low to high concentration

• C. Energy is required

• D. A and C are true

• E. B and C are true